What Is Disodium C12-14 Sec-Alketh-3 Sulfosuccinate?
Disodium C12-14 Sec-Alketh-3 Sulfosuccinate is a synthetic surfactant created from medium chain secondary alcohols that contain 12 to 14 carbon atoms. These alcohols are first reacted with about three units of ethylene oxide, a step that makes the molecule water-loving. The partly ethoxylated alcohols are then treated with sulfosuccinic acid, producing a molecule that carries both oil-friendly and water-friendly portions. Finally the acid form is neutralized with sodium, giving the finished disodium salt that formulators use.
The ingredient gained popularity in the late twentieth century when brands looked for alternatives to harsher sulfates. Its balanced structure delivers effective cleansing while remaining milder on skin and hair, which is why it is often chosen for everyday wash products. Production takes place in large reactors where each step—ethoxylation, esterification and neutralization—is carefully controlled to ensure consistent purity and performance.
You will most often spot Disodium C12-14 Sec-Alketh-3 Sulfosuccinate in foaming cleansers such as shampoos, body washes, facial cleansers, bubble baths and baby washes. It also shows up in liquid hand soaps, makeup removers and some exfoliating scrubs where rich yet gentle foam is desired.
Disodium C12-14 Sec-Alketh-3 Sulfosuccinate’s Cosmetic Benefits/Uses
Formulators rely on this ingredient for several practical reasons
- Cleansing: Lifts away dirt, excess oil and product buildup without stripping the skin or hair of its natural moisture
- Foam Boosting: Creates a dense creamy lather that enhances the sensory experience and improves spreadability of the product
- Hydrotrope: Helps keep other ingredients dissolved in water-based formulas which prevents separation and ensures the product remains clear and stable
This surfactant is generally well tolerated by most skin types including normal, oily, combination and even sensitive skin thanks to its mild cleansing action. Those with very dry or eczema-prone skin might still prefer richer cream cleansers since frequent use of any foaming agent can leave their skin feeling tight.
Because the ingredient is produced entirely from synthetic raw materials it contains no animal derivatives and is suitable for both vegetarians and vegans.
Current safety data indicate no specific risks for pregnant or breastfeeding women when the ingredient is used at the levels found in rinse-off products. That said this is not medical advice and anyone who is pregnant or nursing should discuss all personal care products with a healthcare professional to be sure they align with individual health needs.
Disodium C12-14 Sec-Alketh-3 Sulfosuccinate does not increase sensitivity to sunlight so it is not considered photosensitising. It is also color-safe for chemically treated hair and is compatible with common actives such as niacinamide or panthenol without destabilising them.
Potential Side Effects/Adverse Reactions
Reactions to topical use of Disodium C12-14 Sec-Alketh-3 Sulfosuccinate vary from person to person. The points below outline potential side effects but most people will not experience them when the ingredient is formulated and used correctly.
- Mild transient eye irritation if the lather accidentally gets into the eyes
- Temporary skin tightness or dryness when used very frequently or on naturally dry skin
- Redness or stinging on sensitive or compromised skin
- Rare allergic contact dermatitis presenting as itching or small bumps
- Scalp dryness or flaking in individuals with pre existing scalp issues
If any unwanted reaction occurs stop using the product and seek advice from a healthcare professional.
Comedogenic Rating
Rating: 1 / 5
This ingredient is water soluble and used almost exclusively in rinse-off formulas so it spends very little time on the skin. Its molecular size and high polarity mean it does not lodge in pores or mix with sebum to form plugs, giving it a very low likelihood of causing comedones.
Suitable for acne-prone and breakout-prone skin.
Because it leaves no oily residue, the rating stays low even at the higher concentrations found in shampoos and body washes.
Summary
Disodium C12-14 Sec-Alketh-3 Sulfosuccinate acts as a cleanser that lifts away dirt and oil, a foam booster that builds a dense creamy lather, and a hydrotrope that keeps otherwise tricky ingredients dissolved in water bases. It achieves all three roles thanks to its balanced structure that carries both water-loving and oil-loving segments.
The ingredient enjoys steady popularity in everyday shampoos, face washes and baby cleansers because it offers a kinder alternative to stronger sulfates without sacrificing foam or cleaning power.
Current safety reviews rate it as low-risk when used as directed in rinse-off products. Still, skin can be unpredictable so do a quick patch test when trying any new product that contains it to make sure it suits your personal needs.